28539175

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 43872192

約数和(自身を除く): 15333017

約数列:

[1, 5, 7, 17, 25, 35, 53, 85, 119, 175, 181, 265, 371, 425, 595, 901, 905, 1267, 1325, 1855, 2975, 3077, 4505, 4525, 6307, 6335, 9275, 9593, 15385, 21539, 22525, 31535, 31675, 47965, 67151, 76925, 107695, 157675, 163081, 239825, 335755, 538475, 815405, 1141567, 1678775, 4077025, 5707835, 28539175]

約数ペア:

[(1, 28539175), (5, 5707835), (7, 4077025), (17, 1678775), (25, 1141567), (35, 815405), (53, 538475), (85, 335755), (119, 239825), (175, 163081), (181, 157675), (265, 107695), (371, 76925), (425, 67151), (595, 47965), (901, 31675), (905, 31535), (1267, 22525), (1325, 21539), (1855, 15385), (2975, 9593), (3077, 9275), (4505, 6335), (4525, 6307)]